po700, po708, po722 tranny codes need help! - Chevy and GMC Duramax Diesel Forum
06-07.5 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect

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Old 09-12-2011, 07:44 PM   eBay Motors  #1 (permalink)
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po700, po708, po722 tranny codes need help!

I'm working on my 2006 lbz 2wd 26,000 miles on it and it went into limp mode and won't shift out of first, won't unlock the doors in park, day time running lights stay on constant and says drivers door ajar all the time. like I said above it threw a po700, po708, and a po722. Tranny has never been limped before this and no tuner or any mods done. Fluid is also full and smells normal. Any help is appreciated!
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2006 lbz, 4 door, 4x4, lt, sittin on 20x9 ultra wheels wrapped with 305/55r20 terra grapplers, egr block plate, PPE fuel rail shim kit, EFI Live Tuned with dsp5, mbrp 5" down pipe back with 8" tip, PPE air box mod, fass 150 gph lift pump with draw straw, 56 gallon Titan fuel tank, Firestone airbags, ats co pilot, isspro ev2 boost, rail psi, pyrometer, PCV reroute
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Old 09-13-2011, 04:17 PM   eBay Motors  #2 (permalink)
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Sounds computer/electronic related. I would start out by disconnecting both batteries for at least a few minutes. I fix many computer equipted devices and some time they get in a logic state that cannot be recovered unless all power is drained. This is the eaiest and lest costly step you can perform. From here it gets harder like possibly wire chaffe, computer took a dive and so on. You can also disconnect all of the major plugs going to the computer and check for corrosion and reinstall.
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2006 Chevy Silverado LT 2500HD, LBZ, CCSB, 4x4.

Add ons: Truxedo, TransGoJr, Ranch Hand Legend Front Bumper, Tow Mirrors, Xtreme Bed Liner, Recon Cab Lights, Bluetooth ODB II data thru Android Phone.

Mods: Blue LED's in dash and all dash controls.
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Old 09-14-2011, 08:46 AM   eBay Motors  #3 (permalink)
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Thanks I'll try it, anyone else have sugestions?
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2006 lbz, 4 door, 4x4, lt, sittin on 20x9 ultra wheels wrapped with 305/55r20 terra grapplers, egr block plate, PPE fuel rail shim kit, EFI Live Tuned with dsp5, mbrp 5" down pipe back with 8" tip, PPE air box mod, fass 150 gph lift pump with draw straw, 56 gallon Titan fuel tank, Firestone airbags, ats co pilot, isspro ev2 boost, rail psi, pyrometer, PCV reroute
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